2013 Dodge Challenger Service & Repair Manual

2015 DODGE CHALLENGER

ENGINE 3.5L - Service Information - Challenger DESCRIPTION 3.5L Fig. 1: 3.5L ENGINE Courtesy of CHRYSLER LLC The 3.5 Liter (214 Cubic Inches) 60°V-6 engine is a single overhead camshaft design with hydraulic lifters and four valves per cylinder. The engine does not have provisions for a free wheeling valve train.

Fig. 2: Cylinder Numbering and Firing Order Courtesy of CHRYSLER LLC The cylinders are numbered from front to rear, with the right bank odd numbered, and the left bank even numbered. The firing order is 1-2-3-4-5-6. Fig. 3: ENGINE IDENTIFICATION Courtesy of CHRYSLER LLC

The engine identification number (2) is located on the rear of engine block just below the left cylinder head (1). DIAGNOSIS AND TESTING INTRODUCTION Engine diagnosis is helpful in determining the causes of malfunctions not detected and remedied by routine maintenance. These malfunctions may be classified as either mechanical (e.g., a strange noise), or performance (e.g., engine idles rough and stalls). See ENGINE PERFORMANCE and ENGINE MECHANICAL for possible causes and corrections of malfunctions. Refer to FUEL SYSTEM for the fuel system diagnosis. Additional tests and diagnostic procedures may be necessary for specific engine malfunctions that cannot be isolated with the Service Diagnosis charts. Information concerning additional tests and diagnosis is provided within the following:  Cylinder Compression Pressure Test: Refer to CYLINDER COMPRESSION PRESSURE TEST .  Cylinder Combustion Pressure Leakage Test: Refer to CYLINDER COMBUSTION PRESSURE LEAKAGE TEST .  Cylinder Head Gasket Failure Diagnosis: Refer to CYLINDER HEAD GASKET .  Intake Manifold Leakage Diagnosis: Refer to MANIFOLD, Intake .  Lash Adjuster (Tappet) Noise Diagnosis: Refer to LASH ADJUSTER (TAPPET) NOISE DIAGNOSIS .  Engine Oil Leak Inspection: Refer to ENGINE OIL LEAK INSPECTION . ENGINE PERFORMANCE 1 - REAR OF LEFT CYLINDER HEAD 2 - ENGINE IDENTIFICATION NUMBER CONDITION POSSIBLE CAUSE CORRECTION ENGINE WILL NOT START 1. Weak battery. 1. Test battery. Charge or replace as necessary. Refer to Electrical/Battery System/BATTERY - Description . 2. Corroded or loose battery connections. 2. Clean and tighten battery connections. Apply a coat of light mineral grease to terminals. 3. Faulty starter. 3. Test starting system. Refer to

Electrical/Starting - Diagnosis and Testing . 4. Faulty coil(s) or control unit. 4. Test and replace as needed. (Refer to Appropriate Diagnostic Information) 5. Incorrect spark plug gap. 5. Check and adjust gap as needed. 6. Contamination in fuel system. 6. Clean system and replace fuel filter. 7. Faulty fuel pump. 7. Test fuel pump and replace as needed. (Refer to Appropriate Diagnostic Information) 8. Incorrect engine timing. 8. Check for a skipped timing belt or a loose camshaft sprocket. ENGINE STALLS OR IDLES ROUGH 1. Idle speed too low. 1. Test minimum air flow. (Refer to Appropriate Diagnostic Information) 2. Incorrect fuel mixture. 2. (Refer to Appropriate Diagnostic Information) 3. Intake manifold leakage. 3. Inspect intake manifold gasket, manifold, and vacuum hoses. 4. Faulty coil(s). 4. Test and replace as necessary. (Refer to Appropriate Diagnostic Information) ENGINE LOSS OF POWER 1. Dirty or incorrectly gapped plugs. 1. Set gap as needed or replace plug(s). 2. Contamination in fuel system. 2. Clean system and replace fuel filter. 3. Faulty fuel pump. 3. Test and replace as necessary. (Refer to Appropriate Diagnostic Information) 4. Incorrect valve timing. 4. Correct valve timing as needed. 5. Leaking cylinder head gasket. 5. Replace cylinder head gasket. 6. Low compression. 6. Test compression of each cylinder. 7. Burned, warped, or pitted valves. 7. Replace valves. 8. Plugged or restricted exhaust system. 8. Check exhaust system restriction. Replace parts, as

2013 Dodge Challenger Service & Repair Manual

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